If f(x)=[{:(mx+1,if x le (pi)/(2)),(sin...

If `f(x)=[{:(mx+1,if x le (pi)/(2)),(sinx+n,ifxgt(pi)/(2)):}` is continuous at `x = (pi)/(2)`, then find the relation between m and n.

m=1,n=0

`m=(n pi)/(2)+1`

`n=(m pi)/(2)`

`m=n=(pi)/(2)`

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